Error occure while writing to the text file in asp.net

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Dear Experts,

I am doing ans asp.net project. and i got an error while write text to the file...

here is the c# code below..

C#

public static void FileWrite(string _log_Code,string _Log_Msg)
       {
           string _File_Path = Dir_Path(_log_Code);
           string _Error_log = string.Empty;

           if (!File.Exists(_File_Path))
           {
               File.Create(_File_Path);
           }

           using (StreamWriter sw = new StreamWriter(@_File_Path, true))
           {

               _Error_log = "***********************************************************************************************************************************************" + Environment.NewLine ;
               _Error_log += _Log_Msg + Environment.NewLine;
               _Error_log += "***********************************************************************************************************************************************";

               sw.Write(Environment.NewLine + _Error_log);
               sw.Flush();
               sw.Close();
               sw.Dispose();

           }



       }

Here is the following Error that i got...

The process cannot access the file 'D:\XXX\XXX\FileStore\Error_Log\Error_Log_07-01-2014.txt' because it is being used by another process.

Please help me to solve this..

Thanks and regards,

Dileep

Posted 7-Jan-14 3:20am

dilzz

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OriginalGriff · Answer 1 · 2014-01-07T03:35:00

The error message is pretty clear: the file is in use. And (if you look at the documentation) it's your code that is doing the locking...
File.Create returns a filestream, so it opens and locks the file for writing. You then try to open the same file again and naturally enough the system complains.
I would use File.AppendAllText instead of all of that - it will create the file if it needs to, and add the data without any further locking.

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 2 · 2014-01-07T04:00:00

Refer - File being used by another process after using File.Create()[^]

Quote:
The File.Create method creates the file and opens a FileStream on the file. So your file is already open. You don't really need the file.Create method at all:

C#
string filePath = @"c:\somefilename.txt";
using (StreamWriter sw = new StreamWriter(filePath, true))
{
    //write to the file
}
The boolean in the StreamWriter constructor will cause the contents to be appended if the file exists.

♥…ЯҠ…♥ · Answer 3 · 2014-01-07T03:35:00

Solution 2

Hi Dilzz,

Try referring here[^],
link2[^]
link3[^]
this could help you out.

Hope this helps you a bit.

Regards,
RK

Posted 7-Jan-14 3:35am

♥…ЯҠ…♥

Updated 7-Jan-14 3:36am

v2

Kornfeld Eliyahu Peter · Answer 4 · 2014-01-07T03:36:00

Solution 3

File.Create(_File_Path) will create, open and lock with no share the new file, so StreamWriter will find it inaccessible!
Do something like this:

C#

Stream file = File.Create(_File_Path);
StreamWriter sw = new StreamWriter(file);

Posted 7-Jan-14 3:36am

Kornfeld Eliyahu Peter

Comments

dilzz 7-Jan-14 9:53am

Thanks for ur comment....
But in the case of the file already exist...?? then how to handle..??

Kornfeld Eliyahu Peter 7-Jan-14 9:55am

Do File.Open()...
http://msdn.microsoft.com/en-us/library/b9skfh7s(v=vs.110).aspx

Error occure while writing to the text file in asp.net

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